Thomas Aquinas

And the voice of the Lord of hosts was revealed. Here the sentence is set out. And it may be read as in the person of the Lord: this blasphemy of yours was revealed in my ears, that is, I heard it; surely this iniquity shall not be forgiven, as if to say: should you not believe, above: therefore forgive them not (Isa 2:9); or it may be read in the person of the prophet: this voice of the Lord was revealed in my ears. And all these things that have been said pertain to the captivity carried out at the command of Nabuchodonosor.

Commentary on Isaiah ↗